Digital servo IC for optical disc drives

被引：17
|
作者：
Akkermans, TH
Stan, SG
机构：
[1] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands
[2] Philips Opt Storage, NL-5600 JB Eindhoven, Netherlands
来源：
CONTROL ENGINEERING PRACTICE | 2001年 / 9卷 / 11期
关键词：
adaptive systems; digital control; integrated circuits; optical data storage; PID control; position control; speed control; tracking systems;
D O I：
10.1016/S0967-0661(01)00070-3
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper addresses the use of PID regulators to achieve some of the main control goals in an optical disc drive: (i) focusing of the laser spot on the disc surface, (ii) tracking the continuous data spiral during playback, and (iii) radially searching the target location on disc during an access procedure. The paper discusses the servo loops and a dedicated PID-based digital servo integrated circuit (DSIC) employed to perform the control tasks mentioned above. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1245 / 1253
页数：9
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